Vemer Celo LCD - INT is a flush-mounting electronic thermostat for temperature control in both heating and cooling modes. It performs actions of type 1B and is intended for operating in environments with Pollution Degree 2 and Overvoltage Category III (EN60730-1). The device has a backlit LCD display, which shows the detected temperature value and the relay status. It also has a setpoint modification function, which allows the user to change the desired temperature. The thermostat has a password-protected lock keypad, which prevents unauthorized access to the settings.
Vemer Celo LCD - INT is a flush-mounting electronic thermostat for temperature control in both heating and cooling modes. It performs actions of type 1B and is intended for operating in environments with Pollution Degree 2 and Overvoltage Category III (EN60730-1). The device has a backlit LCD display, which shows the detected temperature value and the relay status. It also has a setpoint modification function, which allows the user to change the desired temperature. The thermostat has a password-protected lock keypad, which prevents unauthorized access to the settings.
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1User Manual
FLUSH-MOUNTING ELECTRONIC THERMOSTAT
Read all instructions carefully
DIMENSIONS
WIRING DIAGRAMS
LEGEND
2
40 42
40
L N
5A/250V~
Flush-mounting electronic thermostat for temperature control both in heating
and cooling. It performs actions of type 1B and are intended for operating
in environments with Pollution Degree 2 and Overvoltage Category III
(EN60730-1).
Code Model Description
VE780300 CELO LCD Flush-mounting thermostat - 2 modules 230 VAC
VE780301 CELO LCD-INT Flush-mounting thermostat - 2 modules 230 VAC
VE780302 NOW.CELO LCD Flush-mounting thermostat - 2 modules 230 VAC
SAFETY WARNINGS
During product installation and operation it is necessary to observe the
following instructions:
1) The device must be installed by a qualified person, in strict compliance
with the connection diagrams.
2) Do not power or connect the device if any part of it is damaged
3) After installation, inacessibility to the connection terminals without
appropriate tools must be guaranteed.
4) The device must be installed and activated in compliance with current electric
systems standards.
5) Before accessing the connection terminals, verify that the leads are not live.
6) In the electrical system of the building where the device must be installed,
a protection device from the overcurrents must be present.
TECHNICAL SPECIFICATIONS
• Power supply: 230Vac (-15% ÷ +10%) 50/60Hz - max absorption: 6 VA / 230Vac
• Installation on flush-mounting box with 45 mm height
• Terminal block for cables with a maximum section of 1.5 mm2
• Summer/winter/off operating mode (with antifreeze)
• Password protected lock keypad
• Regulation type:
– on/off with settable differential (0.1 ÷ 1 °C)
– P8 proportional with 0.8°C band (-0.3 ÷ 0.5 °C) and period 8 minutes
– P15 proportional with 1.5°C band (-0.7 ÷ 0.8 °C) and period 15 minutes
• Measurement precision: ± 0.5 °C
• Measurement temperature resolution: 0.1 °C
• Setpoint range: 2°C ÷ 50 °C
• Operating temperature: 0 °C ÷ 50 °C
• Storage temperature: -10 °C ÷ 65 °C
• Operating humidity: 20÷90% non condensing
• Protection degree: IP40
• Insulation: reinforced among accessible parts (frontal) and all other terminals
• Backlight: blue color
“Environment temperature” field
“Off”
field
“Heating - activation” field
“Cooling - activation”
field
Key “▲” increases the selected field
Key “▼” decreases the selected field
V3IS01015-020 Mod. CELO LCD
Vemer S.p.A.
I - 32032 Feltre (BL) • Via Camp Lonc, 16
e-mail: info@vemer.it - web site: www.vemer.it
information to users pursuant to art. 14 of the directive
2012/19 / EU of the european parliament and of the council
of 4 july 2012 on waste electrical and electronic equipment (WEEE)
If the crossed-out bin symbol appears on the equipment or packaging,
this means the product must not be included with other general waste
at the end of its working life.
The user must take the worn product to a sorted waste center,
or return it to the retailer when purchasing a new one.
Products for disposal can be consigned free of charge (without any new purchase obligation)
to retailers with a sales area of at least 400 m2, if they measure less than 25 cm.
An efficient sorted waste collection for the environmentally friendly disposal of the used device, or its
subsequent recycling, helps avoid the potential negative effects on the environment and people’s health,
and encourages the re-use and/or recycling of the construction materials.
5PLACEMENT
We recommend installing the device at a height of 1.5 meters from the floor,
in an area that reflects as much as possible the average temperature conditions
of the room.
Avoid installation near doors or windows, in niches, behind doors and curtains
or in positions with excess or total lack of ventilation
During the standard operation the thermostat displays the detected temperature value and the relay status is identified by the symbol (heating mode)
or the symbol (cooling mode).
Setpoint modification
Normal operation Modification of the desired temperature (setpoint),
to increase to decrease Normal operation heating on ( )
or
19.8
19.9
... 3 sec.
Error messages
Occurs for the following values of measured temperature:
t < 0 °C
t >50 °C
Occurs in case of probe failure.
In this condition, the relay remains open and
the temperature regulation is suspended.
Switch off
To turn the regulation on/off, press
the key
for 3 seconds.
Note: in heating mode (winter), the device if off, it regulates according to the
antifreeze temperature Toff in order to prevent freezing of the system.
3 sec.
3 sec.
OPERATION
7
Advanced programming
To enter menu Advanced programming keep simultaneously
pressed for 3 seconds the keys
and
until PR will
appear. The items of the menu are displayed in succession.
For each item is displayed an identification abbreviation and
its relative blinking value.
Use the keys
and
to modify the value.
The passage to the next parameter occurs after 3 seconds
without pressing any key. Once all parameters are set the
writing END is displayed and the thermostat returns to
normal operation saving the effected modifications.
3 sec.
Minimum settable setpoint - L0
It’s the minimum value settable as setpoint.
Settable values: 2 ÷ 50 °C
Maximum settable setpoint - KI
It’s the maximum value settable as setpoint.
Settable values: L0 ÷ 50 °C
Operating mode - E-I
if connected to the boiler (heating)
if connected to a cooling system
Antifreeze temperature - Toff - (only in heating)
Minimum temperature maintained with device off
(see box «Switch off»).
Settable values: 1 ÷ 50 °C or --- (excluded function)
Regulation type - REG - (only in heating)
0 = on/off with settable differential
P8 = proportional with band 0.8°C and period 8 minutes
P15 = proportional with band 1.5°C and period 15 minutes
Differential - d0.3 - (only for on/off regulation)
Differential (or hysteresis) for temperature regulation.
Settable values: 0.1 ÷ 1 °C
Backlighting management
To turn the backlight off / on, press the button for 3 seconds.
In this condition the thermostat continues to operate normally
and the backlighting turns on when you enter setpoint modification menus,
advanced programming, enter Password.
3 sec.
3 sec.
Password for keypad lock - PAS
Set a value between 001 and 999 to activate the keypad lock.
Set “---” to disable the lock.
If the keypad lock is active, pressing one key LoC appears
and the password is required. If it’s properly inserted the
keyboard is unlocked for the next 30 seconds.
Reset
Default values
Heating setpoint 21 °C
Cooling setpoint 25 °C
Minimum settable setpoint - L0 2 °C
Maximum settable setpoint - Xi 50 °C
Operating mode (heating)
Antifreeze temperature 6 °C
Regulation type On /Off
Differential 0.3 °C
Password - - - (desabled)
Reset to delete the settings you made and reload the default values.
To reset:
1 remove and restore power to the device.
2 during the flashing of the backlighting press the keys
and
until DEf
will appear.
3 sec.
REFERENCE STANDARDS
Compliance with Community Directives
2014/35/EU (LVD) 2014/30/EU (EMCD)
is declared with reference to the following harmonized standards: • CEI EN 60730-2-9
06-2022
6b CELO LCD-INT MOUNTING (code VE780301)
① Connect the load and power supply (see connection diagram)
② Fasten the device with the metal frame to the flush mounting box and mount
the cover of the device (colour white / grey)
③ Apply the cover plate and the 50x50mm intermediate panel
④ Finally insert the closing frame (colour white / grey)
① Connect the load and power supply (see connection diagram)
② Fasten the device with the metal frame to the flush mounting box
③ Apply the cover plate and the 50x50mm intermediate panel
④ Finally insert the closing frame
The device can be adapted to the cover plates of Berker, Busch-Jaeger, Gira, Jung and Merten, using one of the two assembly sequences illustrated below.
The complete list of compatible cover plates is available on the website www.vemer.it on the product page.
DEVICE
WITH METALLIC FRAME
Flush-mounting box
Intermediate panel
(not supplied)
DEVICE
CLOSING FRAME
(WHITE / GREY)
Cover plate
(not supplied)
COVER
(WHITE / GREY)
DEVICE
WITH METALLIC FRAME
Cover plate
(not supplied)
Intermediate panel
(not supplied)
DEVICE
CLOSING FRAME
(WHITE / GREY)
Flush-mounting box
Adapters with VE780300 Plates
AM ABB series: Mylos
A4 AVE series: S44
BA BTICINO series: Axolute, Axolute AIR
BL BTICINO series: Light, Living International, LivingLight, LivingLight AIR
GC GEWISS series: Chorus
VE VIMAR series: Arké, Eikon, Eikon Evo
VP VIMAR series: Plana
Adapter with VE780302 Plate
LN-2 BTICINO series: Living Now
For information on the possibility of adapting the device with plates different
from those shown, contact the Technical Assistance Service.
CELO LCD (cod. VE780300) - NOW.CELO LCD (cod. VE780302) MOUNTING
① Apply the adapter corresponding to the plate of the civil series to be mounted
(see civil series compatibility table)
② Connect the load and the power supply (see connection diagram), insert the device
into the adapter and fix the cover plate of the civil series supplied
③ With B-Ticino Living Now insert the closing frame too
6a
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Vemer Celo LCD - INT User manual
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Vemer Celo LCD - INT is a flush-mounting electronic thermostat for temperature control in both heating and cooling modes. It performs actions of type 1B and is intended for operating in environments with Pollution Degree 2 and Overvoltage Category III (EN60730-1). The device has a backlit LCD display, which shows the detected temperature value and the relay status. It also has a setpoint modification function, which allows the user to change the desired temperature. The thermostat has a password-protected lock keypad, which prevents unauthorized access to the settings.
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